Car brake and car mechanism



Dec. 25, 1923.

S. C. SMITH CAR BRAKE AND CAR MECHANISM Filed Feb. l2, 1923 4Sheets-Sheet 1 ATTORNEY Dec. 25 ,A 1923.

Filed Feb. 12, 1923 4 Sheets-Sheet 2 ATTORNEY WITNESSES 5. C. SMITH CARBRAKE AND CAR MECHANISM 1923 4 Sheets-Sheet 5 Filed Feb. l2

i mvEN-roa BY ATTORNEY WITNESS:

Dec. 25 1923.

1,478,923 S. C. SMITH y CAR BRAKE AND CAR MEGHANISM Filed Feb. l2, 1925v4 Sh'eets- Sheet 4f alllfalarlfl. 11.111,1,7 A

WITNISS ES Patented Dec. 25K, 1923.

UNITED STATES C. SMITH, OF ALGIEBS, LOUISIANA.

i can BRAKE AND can MnoHANisM. j

Application filed February 12, 1923. Seriall No. 618,654.

ToaZZ whom t may concern.'

Be it known that l, SAMUAL C. SMITH, a citizen of the United States,residin at Algiers, in the parish of Orleans and State of Louisiana,have invented new and useful Improvements inCar Brakes and CarMechanism, of which the following is a specification. f v

This invention relates to the running gear 1o of cars and the like andhas for its object the provision of a novel brake mechanism which willentirely eliminate the use ofthekv ordinary brakeeshoes and operatingmech-y anism therefor and which will have the yadditional advantage ofstoring up the enr ergy consumed in stopping the car and utilizing thisenergy in the starting.

An important object is the provision of a deviceof this characterincluding a friction clutch ,devicey associated with the wheelsytionvbeing comparatively simple and inex-y pensive in manufacture, easyto install, efIicient and durable in use' and a general improvement inthe art.

With the above and other `objects and advantages .in viewthe inventionconsists in the details of construction to be hereinafter more fullydescribed and claimedk and illus-y trated in the accompanying drawings,in 40 which: Y

Figure 1 is a plan view showing my invention applied to the axle of acar, a portion of the car structure being in section,

Figure 2 is a side elevationfof my device, 45 fthe car axle being insection and the forward wheel being removed to expose my mechanism, v

Figure 3 is a vertical section at right anr` gleS to Figure Qtaken`along the car axle, 50 Figure 4 is a crosssectional view taken throughthe clutch shifting collars,

Figure 5 is asection taken transversely of the axle, and along thecylinders which contain the spring pressed plungers,

55 Figure 6 is a detail section showing the a crank 41 l and a lateralarm 42.

segmental plate andassociated connecting l rod and i i e Figure 7 is adetail view of the crank por-k tion of they vertical shaft. 1 v

Referring more particularly to the drawings the letter A designates aportion of ka car and B designates an axle thereof carrying the usualwheels C. Secured upon the axle nearone ,wheel is the outer drum 1Q of aclutch device which includes Ia sleeve 11, rotatableupon the axle andcarrying a disk 12 upon which.. are suitably mounted lfrictiony shoes 13'adapted to co-operate with the drum 10 and having connected therewithvlinks 14 which are in turn pivotally connected with a' grooved collar f15 slidable upon the sleeve l1. yFormed yon the sleeve is a relativelylarge gear 16 and a pinion y17. The drum 10 is formed upon an internalgear 18. e N -L Spac'ed from theeaxle andy journaledvin suitablebearings19 is a shaft V2Ocarrying a, pinion 21 and a relatively largegear 22-` Ywhich meshes with 'the pinion 17. This shaft also carries apinion 23 which meshes: with the, gear 16. Keyed upon the shaft 2O is asleeve 24upon which'is splineda grooved` collar 25 from which extendpivoted klinks 26 which carry friction shoes 27'` co-operating with theinside of 'a drum 28 carried by a hollow shaft 29 which is provided witha pinion 30 meshingwith the internalggear 18.

Engaging the grooved collar 15 is a pivotf ed fork 31 while engaging thecollar 26 is a similar fork 32. 90k The operating means consists of theusualA crank 33 carried by a shaft 34 provided with a beveled gear 35meshing with a beveled gear 36 onl one end of a horizontal shaft 37which has its other'end carrying a beveled en` gear 38 meshing with abeveled gear 39 on a vertical shaft 40 which is provided with Thenumeral 43 represents a segmental shaped plate which is pivotallymounted as shown and which is engageable by the crank 41 at certaintimes tobe rotated. This segmental plate 43 is connected` with theforke44 by a connecting rod 45. The crank 41 isconected withthe fork 32by a connecting rod The numeral49 designates rtwo cylinders within whichare located coil springs 48 engaged by followers 49 on the ends ofa,`rack bar 50 which meshes with the pinion 23. 110

losy

' gage the friction shoes 27 and 13 with the drums 28 and 10respectively, the rack bar 50 4being moved longitudinally and onevspring 48 being compressed. Now whenthe car has come -to a stop themotorman vturns the crank 33 far enough to engage the friction shoes 27with the drum 28. A'When ready to start the motorman turns the crank 33far enough to disengage the friction shoes 13 from the drum 10 while theshoes 27' are still in engagement with the drum28. Then the power storedin the previously compressed spring 48 is delivered to Athe pinion 21,and through the gears and smallpclutch structure sothat the pinion 30meshing with the gear 18 will utilize this power forv rotating theaxle.After the car has been thus started and the motorman applies the powerof whatever motor -is used, a stud 51 on the rack bar 50 will engagethearm 42 on the crank shafttto return the latter to initial position andthe operation is then complete.

VF rom the foregoing description and a study of the drawings it will beyapparent that I havethus provided a simply constructed and easilyinstalled brake mechanism and power saving device for street cars andthe like, the brake mechanism being of the friction clutch type andavoiding the useof the ordinary and well known brake slice constructionand the arrangementbeing of such a character that the energy consumed inbringing the car to a stop will be stored up for subsequent applicationto eect starting.

l/Vhile I have shown and described the preferred embodiment of theinvention it is of course to be understood that I reserve the right tomakevsi'ich changes in theforin, constructionv and arrangement ofparts-as'will not depart from the spirit of the invention or thescopefof the subjoined claims.

Having thus described my invention I claim:

1. In combination with the axle of a car, a combined brake andpowersaving mechn anism comprising a gear secured Vuponthe car axle andhaving a clutch drum, a sleeve rotatable upon the axle and carryingfriction shoes co-operating with said drum, a second shaft, a hollowshaft rotatable onsaid second named shaft and carrying a pinion meshingwith said gear and carrying ya clutch drum, friction shoes lcarried bythe second named shaftk engageable with' the second named drum, gearconnections between both of said shafts, anda spring compressingmechanism operated yby said second namedshaft. l

2. In combination with the axle of a car, a combined brake and powersaving mechanism comprising a gear secured upon the car axle and lhavinga'clutch drum, a sleeve rotatable upon the axle and carrying frictionshoes co-operating with said drum, a

second shaft, a hollow shaft rotatable on said second named shaft andcarrying c a pinion meshing with said gear and carrying a clutch drum,friction shoes carried by the second lnamed vshaft eiigageable with Vthesecond named drinn, gear connections Vbetweenvboth of said shafts, and aspring compressing mechanism Voperated by said secondY named shaft,consisting of a pair of cylinders, springs therein, and a rack barmeshshaft, a hollow shaft rotatable on Asaidsecoiid named sliaft'randcarrying a pinion meshingv ,with said gear and carrying a clutch drum,friction shoes carried bythev second named shaft engageable with thevsecond named drum, gear'c'onnections between both of'said shafts, and aspringcompressing mechanism operated by said second named shaft, andmanual means for controlling the movement of said friction shoes. Y Y'4. In combination with the axle of acar,

a combined brake and power saving mechanismcomprising a gearsecureduponrthe car axle and having a clutch drum, a sleeve rotatable upon theaxle and carrying friction slices co-operating with said drum, a secondshaft, Ia hollow Yshaft rotatable on said second named shaft andcarrying a pinion meshing with sa-id gearand carrying a clutch drum,friction 'shoes'carried by the second named shaft engagea'bl'ewith thesecond named drum, gear connections between both of said shafts, and aspring compressing mechanism operated by said second named shaft, andmanual means for con-1 trolling the movement of said friction slices,consisting of an operating shaft ,provided with a crank handle, a crankshaft driven from said operating shaft, and having a crank portion and asegmental plate engaged thereby, and forks pivotally mounted "andengaging grooved collars associated with the respective friction shoes,and connecting lrods connected with the respective ,forks and with saidcrank and segmental platefA In testimony whereof I aflix my signature.v

' SAMUAL C; SMITH-

